src/gtk/settings.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/gtk/settings.cpp
// Purpose:
// Author:      Robert Roebling
// Modified by: Mart Raudsepp (GetMetric)
// Id:          $Id$
// Copyright:   (c) 1998 Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#include "wx/settings.h"

#ifndef WX_PRECOMP
    #include "wx/cmndata.h"
    #include "wx/toplevel.h"
#endif

#include "wx/fontutil.h"

#include <gtk/gtkversion.h>
#if GTK_CHECK_VERSION(2, 9, 0)
    // gtk_object_sink
    #undef GTK_DISABLE_DEPRECATED
#endif
#include <gtk/gtk.h>
#include <gdk/gdkx.h>

#include <X11/Xatom.h>

// ----------------------------------------------------------------------------
// wxSystemObjects
// ----------------------------------------------------------------------------

struct wxSystemObjects
{
    wxColour m_colBtnFace,
             m_colBtnShadow,
             m_colBtnHighlight,
             m_colHighlight,
             m_colHighlightText,
             m_colListBox,
             m_colWindow,
             m_colWindowText,
             m_colBtnText,
             m_colMenuItemHighlight,
             m_colTooltip,
             m_colTooltipText;

    wxFont m_fontSystem;
};

static wxSystemObjects gs_objects;

void wxClearGtkSystemObjects()
{
    gs_objects.m_colBtnFace = wxColour();
    gs_objects.m_colBtnShadow = wxColour();
    gs_objects.m_colBtnHighlight = wxColour();
    gs_objects.m_colHighlightText = wxColour();
    gs_objects.m_colListBox = wxColour();
    gs_objects.m_colWindow = wxColour();
    gs_objects.m_colWindowText = wxColour();
    gs_objects.m_colBtnText = wxColour();
    gs_objects.m_colMenuItemHighlight = wxColour();
    gs_objects.m_colTooltip = wxColour();
    gs_objects.m_colTooltipText = wxColour();
    gs_objects.m_fontSystem = wxNullFont;
}

// ----------------------------------------------------------------------------
// wxSystemSettings implementation
// ----------------------------------------------------------------------------

// kind of widget to use in GetColourFromGTKWidget
enum wxGtkWidgetType
{
    wxGTK_BUTTON,
    wxGTK_LIST,
    wxGTK_MENUITEM,
    wxGTK_TEXTCTRL
};

// the colour we need
enum wxGtkColourType
{
    wxGTK_FG,
    wxGTK_BG,
    wxGTK_BASE
};

// wxSystemSettings::GetColour() helper: get the colours from a GTK+
// widget style, return true if we did get them
static bool GetColourFromGTKWidget(GdkColor& gdkColor,
                                   wxGtkWidgetType type = wxGTK_BUTTON,
                                   GtkStateType state = GTK_STATE_NORMAL,
                                   wxGtkColourType colour = wxGTK_BG)
{
    GtkWidget *widget;
    switch ( type )
    {
        default:
            wxFAIL_MSG( _T("unexpected GTK widget type") );
            // fall through

        case wxGTK_BUTTON:
            widget = gtk_button_new();
            break;

        case wxGTK_TEXTCTRL:
            widget = gtk_text_view_new();
            break;

        case wxGTK_LIST:
            widget = gtk_tree_view_new_with_model(
                (GtkTreeModel*)gtk_list_store_new(1, G_TYPE_INT));
            break;

        case wxGTK_MENUITEM:
            widget = gtk_menu_item_new();
    }

    GtkStyle *def = gtk_rc_get_style( widget );
    if ( !def )
        def = gtk_widget_get_default_style();

    const bool ok = def != NULL;
    if (ok)
    {
        switch ( colour )
        {
            default:
                wxFAIL_MSG( _T("unexpected GTK colour type") );
                // fall through

            case wxGTK_FG:
                gdkColor = def->fg[state];
                break;

            case wxGTK_BG:
                gdkColor = def->bg[state];
                break;

            case wxGTK_BASE:
                gdkColor = def->base[state];
                break;
        }
    }

    gtk_object_sink((GtkObject*)widget);

    return ok;
}

static void GetTooltipColors()
{
    GtkWidget* widget = gtk_window_new(GTK_WINDOW_POPUP);
    const char* name = "gtk-tooltip";
    if (gtk_check_version(2, 11, 0))
        name = "gtk-tooltips";
    gtk_widget_set_name(widget, name);
    gtk_widget_ensure_style(widget);

    GdkColor c = widget->style->bg[GTK_STATE_NORMAL];
    gs_objects.m_colTooltip = wxColor(c);
    c = widget->style->fg[GTK_STATE_NORMAL];
    gs_objects.m_colTooltipText = wxColor(c);

    gtk_widget_destroy(widget);
}

wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
{
    wxColor color;
    GdkColor gdkColor;
    switch (index)
    {
        case wxSYS_COLOUR_SCROLLBAR:
        case wxSYS_COLOUR_BACKGROUND:
        case wxSYS_COLOUR_INACTIVECAPTION:
        case wxSYS_COLOUR_MENU:
        case wxSYS_COLOUR_WINDOWFRAME:
        case wxSYS_COLOUR_ACTIVEBORDER:
        case wxSYS_COLOUR_INACTIVEBORDER:
        case wxSYS_COLOUR_BTNFACE:
        case wxSYS_COLOUR_MENUBAR:
        case wxSYS_COLOUR_3DLIGHT:
            if (!gs_objects.m_colBtnFace.Ok())
            {
                gdkColor.red =
                gdkColor.green = 0;
                gdkColor.blue = 0x9c40;
                GetColourFromGTKWidget(gdkColor);
                gs_objects.m_colBtnFace = wxColor(gdkColor);
            }
            color = gs_objects.m_colBtnFace;
            break;

        case wxSYS_COLOUR_WINDOW:
            if (!gs_objects.m_colWindow.Ok())
            {
                gdkColor.red =
                gdkColor.green =
                gdkColor.blue = 0xFFFF;
                GetColourFromGTKWidget(gdkColor, wxGTK_TEXTCTRL, GTK_STATE_NORMAL, wxGTK_BASE);
                gs_objects.m_colWindow = wxColor(gdkColor);
            }
            color = gs_objects.m_colWindow;
            break;

        case wxSYS_COLOUR_3DDKSHADOW:
            color = *wxBLACK;
            break;

        case wxSYS_COLOUR_GRAYTEXT:
        case wxSYS_COLOUR_BTNSHADOW:
        //case wxSYS_COLOUR_3DSHADOW:
            if (!gs_objects.m_colBtnShadow.Ok())
            {
                wxColour faceColour(GetColour(wxSYS_COLOUR_3DFACE));
                gs_objects.m_colBtnShadow =
                   wxColour((unsigned char) (faceColour.Red() * 2 / 3),
                            (unsigned char) (faceColour.Green() * 2 / 3),
                            (unsigned char) (faceColour.Blue() * 2 / 3));
            }
            color = gs_objects.m_colBtnShadow;
            break;

        case wxSYS_COLOUR_3DHIGHLIGHT:
        //case wxSYS_COLOUR_BTNHIGHLIGHT:
            color = *wxWHITE;
            break;

        case wxSYS_COLOUR_HIGHLIGHT:
            if (!gs_objects.m_colHighlight.Ok())
            {
                gdkColor.red =
                gdkColor.green = 0;
                gdkColor.blue = 0x9c40;
                GetColourFromGTKWidget(
                    gdkColor, wxGTK_BUTTON, GTK_STATE_SELECTED);
                gs_objects.m_colHighlight = wxColour(gdkColor);
            }
            color = gs_objects.m_colHighlight;
            break;

        case wxSYS_COLOUR_LISTBOX:
            if (!gs_objects.m_colListBox.Ok())
            {
                if ( GetColourFromGTKWidget(gdkColor,
                                            wxGTK_LIST,
                                            GTK_STATE_NORMAL,
                                            wxGTK_BASE) )
                {
                    gs_objects.m_colListBox = wxColour(gdkColor);
                }
                else
                {
                    gs_objects.m_colListBox = *wxWHITE;
                }
            }
            color = gs_objects.m_colListBox;
            break;

        case wxSYS_COLOUR_MENUTEXT:
        case wxSYS_COLOUR_WINDOWTEXT:
        case wxSYS_COLOUR_CAPTIONTEXT:
        case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
        case wxSYS_COLOUR_BTNTEXT:
            if (!gs_objects.m_colBtnText.Ok())
            {
                gdkColor.red =
                gdkColor.green =
                gdkColor.blue = 0;
                GetColourFromGTKWidget(
                    gdkColor, wxGTK_BUTTON, GTK_STATE_NORMAL, wxGTK_FG);
                gs_objects.m_colBtnText = wxColour(gdkColor);
            }
            color = gs_objects.m_colBtnText;
            break;

        case wxSYS_COLOUR_INFOBK:
            if (!gs_objects.m_colTooltip.Ok()) {
                GetTooltipColors();
            }
            color = gs_objects.m_colTooltip;
            break;

        case wxSYS_COLOUR_INFOTEXT:
            if (!gs_objects.m_colTooltipText.Ok()) {
                GetTooltipColors();
            }
            color = gs_objects.m_colTooltipText;
            break;

        case wxSYS_COLOUR_HIGHLIGHTTEXT:
            if (!gs_objects.m_colHighlightText.Ok())
            {
                wxColour hclr = GetColour(wxSYS_COLOUR_HIGHLIGHT);
                if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
                    gs_objects.m_colHighlightText = *wxBLACK;
                else
                    gs_objects.m_colHighlightText = *wxWHITE;
            }
            color = gs_objects.m_colHighlightText;
            break;

        case wxSYS_COLOUR_APPWORKSPACE:
            color = *wxWHITE;    // ?
            break;

        case wxSYS_COLOUR_ACTIVECAPTION:
        case wxSYS_COLOUR_MENUHILIGHT:
            if (!gs_objects.m_colMenuItemHighlight.Ok())
            {
                gdkColor.red =
                gdkColor.green =
                gdkColor.blue = 0;
                GetColourFromGTKWidget(
                    gdkColor, wxGTK_MENUITEM, GTK_STATE_SELECTED, wxGTK_BG);
                gs_objects.m_colMenuItemHighlight = wxColour(gdkColor);
            }
            color = gs_objects.m_colMenuItemHighlight;
            break;

        case wxSYS_COLOUR_HOTLIGHT:
        case wxSYS_COLOUR_GRADIENTACTIVECAPTION:
        case wxSYS_COLOUR_GRADIENTINACTIVECAPTION:
            // TODO
            color = *wxBLACK;
            break;

        case wxSYS_COLOUR_MAX:
        default:
            wxFAIL_MSG( _T("unknown system colour index") );
            color = *wxWHITE;
            break;
    }

    return color;
}

wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
{
    wxFont font;
    switch (index)
    {
        case wxSYS_OEM_FIXED_FONT:
        case wxSYS_ANSI_FIXED_FONT:
        case wxSYS_SYSTEM_FIXED_FONT:
            font = *wxNORMAL_FONT;
            break;

        case wxSYS_ANSI_VAR_FONT:
        case wxSYS_SYSTEM_FONT:
        case wxSYS_DEVICE_DEFAULT_FONT:
        case wxSYS_DEFAULT_GUI_FONT:
            if (!gs_objects.m_fontSystem.Ok())
            {
                GtkWidget *widget = gtk_button_new();
                GtkStyle *def = gtk_rc_get_style( widget );
                if ( !def || !def->font_desc )
                    def = gtk_widget_get_default_style();
                if ( def && def->font_desc )
                {
                    wxNativeFontInfo info;
                    info.description =
                        pango_font_description_copy(def->font_desc);
                    gs_objects.m_fontSystem = wxFont(info);
                }
                else
                {
                    GtkSettings *settings = gtk_settings_get_default();
                    gchar *font_name = NULL;
                    g_object_get ( settings,
                                   "gtk-font-name",
                                   &font_name,
                                   NULL);
                    if (!font_name)
                        gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
                    else
                        gs_objects.m_fontSystem = wxFont(wxString::FromAscii(font_name));
                    g_free (font_name);
                }
                gtk_object_sink((GtkObject*)widget);
            }
            font = gs_objects.m_fontSystem;
            break;

        default:
            break;
    }
    return font;
}

static bool GetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
{
    bool success = false;
    Atom property = 0;
    if (gdk_x11_screen_supports_net_wm_hint(
            gdk_drawable_get_screen(window),
            gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
    {
        success = true;
        property = gdk_x11_get_xatom_by_name_for_display(
            gdk_drawable_get_display(window),
            "_NET_FRAME_EXTENTS");
    }

    if (success)
    {
        Atom type;
        int format;
        gulong nitems, bytes_after;
        long* data = NULL;
        success = XGetWindowProperty(
            gdk_x11_drawable_get_xdisplay(window),
            gdk_x11_drawable_get_xid(window),
            property,
            0, 4,
            false,
            XA_CARDINAL,
            &type, &format, &nitems, &bytes_after, (guchar**)&data
            ) == Success;
        if (success)
        {
            success = data && nitems == 4;
            if (success)
            {
                if (left)   *left   = int(data[0]);
                if (right)  *right  = int(data[1]);
                if (top)    *top    = int(data[2]);
                if (bottom) *bottom = int(data[3]);
            }
            if (data)
                XFree(data);
        }
    }
    return success;
}

// helper: return the GtkSettings either for the screen the current window is
// on or for the default screen if window is NULL
static GtkSettings *GetSettingsForWindowScreen(GdkWindow *window)
{
    return window ? gtk_settings_get_for_screen(gdk_drawable_get_screen(window))
                  : gtk_settings_get_default();
}

int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
{
    GdkWindow *window = NULL;
    if(win && GTK_WIDGET_REALIZED(win->GetHandle()))
        window = win->GetHandle()->window;

    switch (index)
    {
        case wxSYS_BORDER_X:
        case wxSYS_BORDER_Y:
        case wxSYS_EDGE_X:
        case wxSYS_EDGE_Y:
        case wxSYS_FRAMESIZE_X:
        case wxSYS_FRAMESIZE_Y:
            // If a window is specified/realized, and it is a toplevel window, we can query from wm.
            // The returned border thickness is outside the client area in that case.
            if (window)
            {
                wxTopLevelWindow *tlw = wxDynamicCast(win, wxTopLevelWindow);
                if (!tlw)
                    return -1; // not a tlw, not sure how to approach
                else
                {
                    // Get the frame extents from the windowmanager.
                    // In most cases the top extent is the titlebar, so we use the bottom extent
                    // for the heights.
                    int right, bottom;
                    if (GetFrameExtents(window, NULL, &right, NULL, &bottom))
                    {
                        switch (index)
                        {
                            case wxSYS_BORDER_X:
                            case wxSYS_EDGE_X:
                            case wxSYS_FRAMESIZE_X:
                                return right; // width of right extent
                            default:
                                return bottom; // height of bottom extent
                        }
                    }
                }
            }

            return -1; // no window specified

        case wxSYS_CURSOR_X:
        case wxSYS_CURSOR_Y:
                return gdk_display_get_default_cursor_size(
                            window ? gdk_drawable_get_display(window)
                                   : gdk_display_get_default());

        case wxSYS_DCLICK_X:
        case wxSYS_DCLICK_Y:
            gint dclick_distance;
            g_object_get(GetSettingsForWindowScreen(window),
                            "gtk-double-click-distance", &dclick_distance, NULL);

            return dclick_distance * 2;

        case wxSYS_DCLICK_MSEC:
            gint dclick;
            g_object_get(GetSettingsForWindowScreen(window),
                            "gtk-double-click-time", &dclick, NULL);
            return dclick;

        case wxSYS_DRAG_X:
        case wxSYS_DRAG_Y:
            gint drag_threshold;
            g_object_get(GetSettingsForWindowScreen(window),
                            "gtk-dnd-drag-threshold", &drag_threshold, NULL);

            // The correct thing here would be to double the value
            // since that is what the API wants. But the values
            // are much bigger under GNOME than under Windows and
            // just seem to much in many cases to be useful.
            // drag_threshold *= 2;

            return drag_threshold;

        case wxSYS_ICON_X:
        case wxSYS_ICON_Y:
            return 32;

        case wxSYS_SCREEN_X:
            if (window)
                return gdk_screen_get_width(gdk_drawable_get_screen(window));
            else
                return gdk_screen_width();

        case wxSYS_SCREEN_Y:
            if (window)
                return gdk_screen_get_height(gdk_drawable_get_screen(window));
            else
                return gdk_screen_height();

        case wxSYS_HSCROLL_Y:
        case wxSYS_VSCROLL_X:
            return 15;

        case wxSYS_CAPTION_Y:
            if (!window)
                // No realized window specified, and no implementation for that case yet.
                return -1;

            wxASSERT_MSG( wxDynamicCast(win, wxTopLevelWindow),
                          wxT("Asking for caption height of a non toplevel window") );

            // Get the height of the top windowmanager border.
            // This is the titlebar in most cases. The titlebar might be elsewhere, and
            // we could check which is the thickest wm border to decide on which side the
            // titlebar is, but this might lead to interesting behaviours in used code.
            // Reconsider when we have a way to report to the user on which side it is.
            {
                int top;
                if (GetFrameExtents(window, NULL, NULL, &top, NULL))
                {
                    return top; // top frame extent
                }
            }

            // Try a default approach without a window pointer, if possible
            // ...

            return -1;

        case wxSYS_PENWINDOWS_PRESENT:
            // No MS Windows for Pen computing extension available in X11 based gtk+.
            return 0;

        default:
            return -1;   // metric is unknown
    }
}

bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
{
    switch (index)
    {
        case wxSYS_CAN_ICONIZE_FRAME:
            return false;

        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
            return true;

        default:
            return false;
    }
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/gtk/settings.cpp
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// Modified by: Mart Raudsepp (GetMetric)
	6	// Id: $Id$
	7	// Copyright: (c) 1998 Robert Roebling
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	// For compilers that support precompilation, includes "wx.h".
	12	#include "wx/wxprec.h"
	13
	14	#include "wx/settings.h"
	15
	16	#ifndef WX_PRECOMP
	17	#include "wx/cmndata.h"
	18	#include "wx/toplevel.h"
	19	#endif
	20
	21	#include "wx/fontutil.h"
	22
	23	#include <gtk/gtkversion.h>
	24	#if GTK_CHECK_VERSION(2, 9, 0)
	25	// gtk_object_sink
	26	#undef GTK_DISABLE_DEPRECATED
	27	#endif
	28	#include <gtk/gtk.h>
	29	#include <gdk/gdkx.h>
	30
	31	#include <X11/Xatom.h>
	32
	33	// ----------------------------------------------------------------------------
	34	// wxSystemObjects
	35	// ----------------------------------------------------------------------------
	36
	37	struct wxSystemObjects
	38	{
	39	wxColour m_colBtnFace,
	40	m_colBtnShadow,
	41	m_colBtnHighlight,
	42	m_colHighlight,
	43	m_colHighlightText,
	44	m_colListBox,
	45	m_colWindow,
	46	m_colWindowText,
	47	m_colBtnText,
	48	m_colMenuItemHighlight,
	49	m_colTooltip,
	50	m_colTooltipText;
	51
	52	wxFont m_fontSystem;
	53	};
	54
	55	static wxSystemObjects gs_objects;
	56
	57	void wxClearGtkSystemObjects()
	58	{
	59	gs_objects.m_colBtnFace = wxColour();
	60	gs_objects.m_colBtnShadow = wxColour();
	61	gs_objects.m_colBtnHighlight = wxColour();
	62	gs_objects.m_colHighlightText = wxColour();
	63	gs_objects.m_colListBox = wxColour();
	64	gs_objects.m_colWindow = wxColour();
	65	gs_objects.m_colWindowText = wxColour();
	66	gs_objects.m_colBtnText = wxColour();
	67	gs_objects.m_colMenuItemHighlight = wxColour();
	68	gs_objects.m_colTooltip = wxColour();
	69	gs_objects.m_colTooltipText = wxColour();
	70	gs_objects.m_fontSystem = wxNullFont;
	71	}
	72
	73	// ----------------------------------------------------------------------------
	74	// wxSystemSettings implementation
	75	// ----------------------------------------------------------------------------
	76
	77	// kind of widget to use in GetColourFromGTKWidget
	78	enum wxGtkWidgetType
	79	{
	80	wxGTK_BUTTON,
	81	wxGTK_LIST,
	82	wxGTK_MENUITEM,
	83	wxGTK_TEXTCTRL
	84	};
	85
	86	// the colour we need
	87	enum wxGtkColourType
	88	{
	89	wxGTK_FG,
	90	wxGTK_BG,
	91	wxGTK_BASE
	92	};
	93
	94	// wxSystemSettings::GetColour() helper: get the colours from a GTK+
	95	// widget style, return true if we did get them
	96	static bool GetColourFromGTKWidget(GdkColor& gdkColor,
	97	wxGtkWidgetType type = wxGTK_BUTTON,
	98	GtkStateType state = GTK_STATE_NORMAL,
	99	wxGtkColourType colour = wxGTK_BG)
	100	{
	101	GtkWidget *widget;
	102	switch ( type )
	103	{
	104	default:
	105	wxFAIL_MSG( _T("unexpected GTK widget type") );
	106	// fall through
	107
	108	case wxGTK_BUTTON:
	109	widget = gtk_button_new();
	110	break;
	111
	112	case wxGTK_TEXTCTRL:
	113	widget = gtk_text_view_new();
	114	break;
	115
	116	case wxGTK_LIST:
	117	widget = gtk_tree_view_new_with_model(
	118	(GtkTreeModel*)gtk_list_store_new(1, G_TYPE_INT));
	119	break;
	120
	121	case wxGTK_MENUITEM:
	122	widget = gtk_menu_item_new();
	123	}
	124
	125	GtkStyle *def = gtk_rc_get_style( widget );
	126	if ( !def )
	127	def = gtk_widget_get_default_style();
	128
	129	const bool ok = def != NULL;
	130	if (ok)
	131	{
	132	switch ( colour )
	133	{
	134	default:
	135	wxFAIL_MSG( _T("unexpected GTK colour type") );
	136	// fall through
	137
	138	case wxGTK_FG:
	139	gdkColor = def->fg[state];
	140	break;
	141
	142	case wxGTK_BG:
	143	gdkColor = def->bg[state];
	144	break;
	145
	146	case wxGTK_BASE:
	147	gdkColor = def->base[state];
	148	break;
	149	}
	150	}
	151
	152	gtk_object_sink((GtkObject*)widget);
	153
	154	return ok;
	155	}
	156
	157	static void GetTooltipColors()
	158	{
	159	GtkWidget* widget = gtk_window_new(GTK_WINDOW_POPUP);
	160	const char* name = "gtk-tooltip";
	161	if (gtk_check_version(2, 11, 0))
	162	name = "gtk-tooltips";
	163	gtk_widget_set_name(widget, name);
	164	gtk_widget_ensure_style(widget);
	165
	166	GdkColor c = widget->style->bg[GTK_STATE_NORMAL];
	167	gs_objects.m_colTooltip = wxColor(c);
	168	c = widget->style->fg[GTK_STATE_NORMAL];
	169	gs_objects.m_colTooltipText = wxColor(c);
	170
	171	gtk_widget_destroy(widget);
	172	}
	173
	174	wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
	175	{
	176	wxColor color;
	177	GdkColor gdkColor;
	178	switch (index)
	179	{
	180	case wxSYS_COLOUR_SCROLLBAR:
	181	case wxSYS_COLOUR_BACKGROUND:
	182	case wxSYS_COLOUR_INACTIVECAPTION:
	183	case wxSYS_COLOUR_MENU:
	184	case wxSYS_COLOUR_WINDOWFRAME:
	185	case wxSYS_COLOUR_ACTIVEBORDER:
	186	case wxSYS_COLOUR_INACTIVEBORDER:
	187	case wxSYS_COLOUR_BTNFACE:
	188	case wxSYS_COLOUR_MENUBAR:
	189	case wxSYS_COLOUR_3DLIGHT:
	190	if (!gs_objects.m_colBtnFace.Ok())
	191	{
	192	gdkColor.red =
	193	gdkColor.green = 0;
	194	gdkColor.blue = 0x9c40;
	195	GetColourFromGTKWidget(gdkColor);
	196	gs_objects.m_colBtnFace = wxColor(gdkColor);
	197	}
	198	color = gs_objects.m_colBtnFace;
	199	break;
	200
	201	case wxSYS_COLOUR_WINDOW:
	202	if (!gs_objects.m_colWindow.Ok())
	203	{
	204	gdkColor.red =
	205	gdkColor.green =
	206	gdkColor.blue = 0xFFFF;
	207	GetColourFromGTKWidget(gdkColor, wxGTK_TEXTCTRL, GTK_STATE_NORMAL, wxGTK_BASE);
	208	gs_objects.m_colWindow = wxColor(gdkColor);
	209	}
	210	color = gs_objects.m_colWindow;
	211	break;
	212
	213	case wxSYS_COLOUR_3DDKSHADOW:
	214	color = *wxBLACK;
	215	break;
	216
	217	case wxSYS_COLOUR_GRAYTEXT:
	218	case wxSYS_COLOUR_BTNSHADOW:
	219	//case wxSYS_COLOUR_3DSHADOW:
	220	if (!gs_objects.m_colBtnShadow.Ok())
	221	{
	222	wxColour faceColour(GetColour(wxSYS_COLOUR_3DFACE));
	223	gs_objects.m_colBtnShadow =
	224	wxColour((unsigned char) (faceColour.Red() * 2 / 3),
	225	(unsigned char) (faceColour.Green() * 2 / 3),
	226	(unsigned char) (faceColour.Blue() * 2 / 3));
	227	}
	228	color = gs_objects.m_colBtnShadow;
	229	break;
	230
	231	case wxSYS_COLOUR_3DHIGHLIGHT:
	232	//case wxSYS_COLOUR_BTNHIGHLIGHT:
	233	color = *wxWHITE;
	234	break;
	235
	236	case wxSYS_COLOUR_HIGHLIGHT:
	237	if (!gs_objects.m_colHighlight.Ok())
	238	{
	239	gdkColor.red =
	240	gdkColor.green = 0;
	241	gdkColor.blue = 0x9c40;
	242	GetColourFromGTKWidget(
	243	gdkColor, wxGTK_BUTTON, GTK_STATE_SELECTED);
	244	gs_objects.m_colHighlight = wxColour(gdkColor);
	245	}
	246	color = gs_objects.m_colHighlight;
	247	break;
	248
	249	case wxSYS_COLOUR_LISTBOX:
	250	if (!gs_objects.m_colListBox.Ok())
	251	{
	252	if ( GetColourFromGTKWidget(gdkColor,
	253	wxGTK_LIST,
	254	GTK_STATE_NORMAL,
	255	wxGTK_BASE) )
	256	{
	257	gs_objects.m_colListBox = wxColour(gdkColor);
	258	}
	259	else
	260	{
	261	gs_objects.m_colListBox = *wxWHITE;
	262	}
	263	}
	264	color = gs_objects.m_colListBox;
	265	break;
	266
	267	case wxSYS_COLOUR_MENUTEXT:
	268	case wxSYS_COLOUR_WINDOWTEXT:
	269	case wxSYS_COLOUR_CAPTIONTEXT:
	270	case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
	271	case wxSYS_COLOUR_BTNTEXT:
	272	if (!gs_objects.m_colBtnText.Ok())
	273	{
	274	gdkColor.red =
	275	gdkColor.green =
	276	gdkColor.blue = 0;
	277	GetColourFromGTKWidget(
	278	gdkColor, wxGTK_BUTTON, GTK_STATE_NORMAL, wxGTK_FG);
	279	gs_objects.m_colBtnText = wxColour(gdkColor);
	280	}
	281	color = gs_objects.m_colBtnText;
	282	break;
	283
	284	case wxSYS_COLOUR_INFOBK:
	285	if (!gs_objects.m_colTooltip.Ok()) {
	286	GetTooltipColors();
	287	}
	288	color = gs_objects.m_colTooltip;
	289	break;
	290
	291	case wxSYS_COLOUR_INFOTEXT:
	292	if (!gs_objects.m_colTooltipText.Ok()) {
	293	GetTooltipColors();
	294	}
	295	color = gs_objects.m_colTooltipText;
	296	break;
	297
	298	case wxSYS_COLOUR_HIGHLIGHTTEXT:
	299	if (!gs_objects.m_colHighlightText.Ok())
	300	{
	301	wxColour hclr = GetColour(wxSYS_COLOUR_HIGHLIGHT);
	302	if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
	303	gs_objects.m_colHighlightText = *wxBLACK;
	304	else
	305	gs_objects.m_colHighlightText = *wxWHITE;
	306	}
	307	color = gs_objects.m_colHighlightText;
	308	break;
	309
	310	case wxSYS_COLOUR_APPWORKSPACE:
	311	color = *wxWHITE; // ?
	312	break;
	313
	314	case wxSYS_COLOUR_ACTIVECAPTION:
	315	case wxSYS_COLOUR_MENUHILIGHT:
	316	if (!gs_objects.m_colMenuItemHighlight.Ok())
	317	{
	318	gdkColor.red =
	319	gdkColor.green =
	320	gdkColor.blue = 0;
	321	GetColourFromGTKWidget(
	322	gdkColor, wxGTK_MENUITEM, GTK_STATE_SELECTED, wxGTK_BG);
	323	gs_objects.m_colMenuItemHighlight = wxColour(gdkColor);
	324	}
	325	color = gs_objects.m_colMenuItemHighlight;
	326	break;
	327
	328	case wxSYS_COLOUR_HOTLIGHT:
	329	case wxSYS_COLOUR_GRADIENTACTIVECAPTION:
	330	case wxSYS_COLOUR_GRADIENTINACTIVECAPTION:
	331	// TODO
	332	color = *wxBLACK;
	333	break;
	334
	335	case wxSYS_COLOUR_MAX:
	336	default:
	337	wxFAIL_MSG( _T("unknown system colour index") );
	338	color = *wxWHITE;
	339	break;
	340	}
	341
	342	return color;
	343	}
	344
	345	wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
	346	{
	347	wxFont font;
	348	switch (index)
	349	{
	350	case wxSYS_OEM_FIXED_FONT:
	351	case wxSYS_ANSI_FIXED_FONT:
	352	case wxSYS_SYSTEM_FIXED_FONT:
	353	font = *wxNORMAL_FONT;
	354	break;
	355
	356	case wxSYS_ANSI_VAR_FONT:
	357	case wxSYS_SYSTEM_FONT:
	358	case wxSYS_DEVICE_DEFAULT_FONT:
	359	case wxSYS_DEFAULT_GUI_FONT:
	360	if (!gs_objects.m_fontSystem.Ok())
	361	{
	362	GtkWidget *widget = gtk_button_new();
	363	GtkStyle *def = gtk_rc_get_style( widget );
	364	if ( !def \|\| !def->font_desc )
	365	def = gtk_widget_get_default_style();
	366	if ( def && def->font_desc )
	367	{
	368	wxNativeFontInfo info;
	369	info.description =
	370	pango_font_description_copy(def->font_desc);
	371	gs_objects.m_fontSystem = wxFont(info);
	372	}
	373	else
	374	{
	375	GtkSettings *settings = gtk_settings_get_default();
	376	gchar *font_name = NULL;
	377	g_object_get ( settings,
	378	"gtk-font-name",
	379	&font_name,
	380	NULL);
	381	if (!font_name)
	382	gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
	383	else
	384	gs_objects.m_fontSystem = wxFont(wxString::FromAscii(font_name));
	385	g_free (font_name);
	386	}
	387	gtk_object_sink((GtkObject*)widget);
	388	}
	389	font = gs_objects.m_fontSystem;
	390	break;
	391
	392	default:
	393	break;
	394	}
	395	return font;
	396	}
	397
	398	static bool GetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
	399	{
	400	bool success = false;
	401	Atom property = 0;
	402	if (gdk_x11_screen_supports_net_wm_hint(
	403	gdk_drawable_get_screen(window),
	404	gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
	405	{
	406	success = true;
	407	property = gdk_x11_get_xatom_by_name_for_display(
	408	gdk_drawable_get_display(window),
	409	"_NET_FRAME_EXTENTS");
	410	}
	411
	412	if (success)
	413	{
	414	Atom type;
	415	int format;
	416	gulong nitems, bytes_after;
	417	long* data = NULL;
	418	success = XGetWindowProperty(
	419	gdk_x11_drawable_get_xdisplay(window),
	420	gdk_x11_drawable_get_xid(window),
	421	property,
	422	0, 4,
	423	false,
	424	XA_CARDINAL,
	425	&type, &format, &nitems, &bytes_after, (guchar**)&data
	426	) == Success;
	427	if (success)
	428	{
	429	success = data && nitems == 4;
	430	if (success)
	431	{
	432	if (left) *left = int(data[0]);
	433	if (right) *right = int(data[1]);
	434	if (top) *top = int(data[2]);
	435	if (bottom) *bottom = int(data[3]);
	436	}
	437	if (data)
	438	XFree(data);
	439	}
	440	}
	441	return success;
	442	}
	443
	444	// helper: return the GtkSettings either for the screen the current window is
	445	// on or for the default screen if window is NULL
	446	static GtkSettings GetSettingsForWindowScreen(GdkWindow window)
	447	{
	448	return window ? gtk_settings_get_for_screen(gdk_drawable_get_screen(window))
	449	: gtk_settings_get_default();
	450	}
	451
	452	int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
	453	{
	454	GdkWindow *window = NULL;
	455	if(win && GTK_WIDGET_REALIZED(win->GetHandle()))
	456	window = win->GetHandle()->window;
	457
	458	switch (index)
	459	{
	460	case wxSYS_BORDER_X:
	461	case wxSYS_BORDER_Y:
	462	case wxSYS_EDGE_X:
	463	case wxSYS_EDGE_Y:
	464	case wxSYS_FRAMESIZE_X:
	465	case wxSYS_FRAMESIZE_Y:
	466	// If a window is specified/realized, and it is a toplevel window, we can query from wm.
	467	// The returned border thickness is outside the client area in that case.
	468	if (window)
	469	{
	470	wxTopLevelWindow *tlw = wxDynamicCast(win, wxTopLevelWindow);
	471	if (!tlw)
	472	return -1; // not a tlw, not sure how to approach
	473	else
	474	{
	475	// Get the frame extents from the windowmanager.
	476	// In most cases the top extent is the titlebar, so we use the bottom extent
	477	// for the heights.
	478	int right, bottom;
	479	if (GetFrameExtents(window, NULL, &right, NULL, &bottom))
	480	{
	481	switch (index)
	482	{
	483	case wxSYS_BORDER_X:
	484	case wxSYS_EDGE_X:
	485	case wxSYS_FRAMESIZE_X:
	486	return right; // width of right extent
	487	default:
	488	return bottom; // height of bottom extent
	489	}
	490	}
	491	}
	492	}
	493
	494	return -1; // no window specified
	495
	496	case wxSYS_CURSOR_X:
	497	case wxSYS_CURSOR_Y:
	498	return gdk_display_get_default_cursor_size(
	499	window ? gdk_drawable_get_display(window)
	500	: gdk_display_get_default());
	501
	502	case wxSYS_DCLICK_X:
	503	case wxSYS_DCLICK_Y:
	504	gint dclick_distance;
	505	g_object_get(GetSettingsForWindowScreen(window),
	506	"gtk-double-click-distance", &dclick_distance, NULL);
	507
	508	return dclick_distance * 2;
	509
	510	case wxSYS_DCLICK_MSEC:
	511	gint dclick;
	512	g_object_get(GetSettingsForWindowScreen(window),
	513	"gtk-double-click-time", &dclick, NULL);
	514	return dclick;
	515
	516	case wxSYS_DRAG_X:
	517	case wxSYS_DRAG_Y:
	518	gint drag_threshold;
	519	g_object_get(GetSettingsForWindowScreen(window),
	520	"gtk-dnd-drag-threshold", &drag_threshold, NULL);
	521
	522	// The correct thing here would be to double the value
	523	// since that is what the API wants. But the values
	524	// are much bigger under GNOME than under Windows and
	525	// just seem to much in many cases to be useful.
	526	// drag_threshold *= 2;
	527
	528	return drag_threshold;
	529
	530	case wxSYS_ICON_X:
	531	case wxSYS_ICON_Y:
	532	return 32;
	533
	534	case wxSYS_SCREEN_X:
	535	if (window)
	536	return gdk_screen_get_width(gdk_drawable_get_screen(window));
	537	else
	538	return gdk_screen_width();
	539
	540	case wxSYS_SCREEN_Y:
	541	if (window)
	542	return gdk_screen_get_height(gdk_drawable_get_screen(window));
	543	else
	544	return gdk_screen_height();
	545
	546	case wxSYS_HSCROLL_Y:
	547	case wxSYS_VSCROLL_X:
	548	return 15;
	549
	550	case wxSYS_CAPTION_Y:
	551	if (!window)
	552	// No realized window specified, and no implementation for that case yet.
	553	return -1;
	554
	555	wxASSERT_MSG( wxDynamicCast(win, wxTopLevelWindow),
	556	wxT("Asking for caption height of a non toplevel window") );
	557
	558	// Get the height of the top windowmanager border.
	559	// This is the titlebar in most cases. The titlebar might be elsewhere, and
	560	// we could check which is the thickest wm border to decide on which side the
	561	// titlebar is, but this might lead to interesting behaviours in used code.
	562	// Reconsider when we have a way to report to the user on which side it is.
	563	{
	564	int top;
	565	if (GetFrameExtents(window, NULL, NULL, &top, NULL))
	566	{
	567	return top; // top frame extent
	568	}
	569	}
	570
	571	// Try a default approach without a window pointer, if possible
	572	// ...
	573
	574	return -1;
	575
	576	case wxSYS_PENWINDOWS_PRESENT:
	577	// No MS Windows for Pen computing extension available in X11 based gtk+.
	578	return 0;
	579
	580	default:
	581	return -1; // metric is unknown
	582	}
	583	}
	584
	585	bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
	586	{
	587	switch (index)
	588	{
	589	case wxSYS_CAN_ICONIZE_FRAME:
	590	return false;
	591
	592	case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
	593	return true;
	594
	595	default:
	596	return false;
	597	}
	598	}